laravel学习日志【Laravel-admin入门】

Laravel-admin文档地址：http://laravel-admin.org/docs/zh/installation

按照文档安装

• 如果出现引用错误或者No application encryption key has been specified参照部署篇：https://blog.csdn.net/qq_24910011/article/details/96283768
• mysql版本过低时安装会出现错误，文档里面也有说明，多次遇到特备注：在app\Providers\AppServiceProvider.php添加默认值
• 将/config/app.php中'locale' => 'en' 改为 'locale' => 'zh-CN'，转换称中文版

后台菜单是存数据库的，在后台自行添加后将相应功能路由填入路径即可

---

接下来我们来做一个简单的功能。

例如：我们需要在菜单增加一个新闻管理

我们在/app/Http/Model创建模型News.php

<?php 
namespace App\Http\Model;
use Illuminate\Database\Eloquent\Model;
class News extends Base{
    public $table = 'news';
        
    public function getJsonStrAttribute($value)
    {
        return json_decode($value,true);
    }
    //保存jsonstr字段的时候会自动转化为json格式
    public function setJsonStrAttribute($value)
    {
        $this->attributes['jsonstr'] = json_encode($value);
    }
}

后台默认路由地址在：/app/Admin/routes.php

<?php

use Illuminate\Routing\Router;

Admin::routes();

Route::group([
    'prefix'        => config('admin.route.prefix'),
    'namespace'     => config('admin.route.namespace'),
    'middleware'    => config('admin.route.middleware'),
], function (Router $router) {

    $router->get('/', 'HomeController@index')->name('admin.home');
    /**
     * 等同
     * $router->resource('news', 'NewsController');
     * $router->resource('shop',ShopController::class);
     * Route::resource('news', 'NewsController');
     */
    $router->resources([
        'news'=>'NewsController'
    ]);
    

});

laravel-admin省去了很多常规代码，基本使用只要参照ExampleController.php里面的代码即可。

下面是第一次学习的代码，里面的代码是参照一位后辈的。

<?php
namespace App\Admin\Controllers;

use App\Http\Model\Shop;
use Encore\Admin\Form;
use Encore\Admin\Facades\Admin;
use Encore\Admin\Layout\Content;
use Encore\Admin\Controllers\ModelForm;
use Encore\Admin\Show;
use Encore\Admin\Grid;

class ShopController extends BaseController
{
    use ModelForm;
    protected $header = '商品列表';
    /**
     * Index interface.
     *
     * @return Content
     */
    public function index(Content $content)
    {
        $content->header($this->header);//设置头部标题，等同全局变量$title
        $content->description('列表');  //设置头部描述
        $content->body($this->grid());  //调用原有函数
        return $content;
    }

    public function test(){

    }

    /**
     * Edit interface.
     *
     * @param $id
     * @return Content
     */
    public function edit($id,Content $content)
    {
        $content->header($this->header);
        $content->description('编辑');
        $content->body($this->form()->edit($id));
        return $content;
    }

    /**
     * Create interface.
     *
     * @return Content
     */
    public function create(Content $content)
    {
        $content->header($this->header);
        $content->description('新建');
        $content->body($this->form());
        return $content;
    }

    /**
     * Make a grid builder.
     *
     * @return Grid
     */
    protected function grid()
    {
        $grid = new Grid(new Shop());
        $grid->id('ID');
        $grid->name('商品名'); //等同 $grid->column('name', __('商品名'));

        $options = [1 => 'foo', 2 => 'bar', 3 => 'Option name'];
        $grid->listtype('类别')->map(function ($pictures) use($options) {
            return array_key_exists($pictures,$options) ? $options[$pictures] : '';
        })->label();
        // 设置text、color、和存储值
        $states = [
            'off' => ['value' => 0, 'text' => '关闭', 'color' => 'default'],
            'on'  => ['value' => 1, 'text' => '打开', 'color' => 'primary']
        ];
        $grid->status('状态')->switch($states);

        $grid->created_at('创建时间');
        $grid->updated_at('修改时间');
        return $grid;
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        return Admin::form(Shop::class, function (Form $form) {
            //新建和修改都在这里
            $form->text('name','商品名'); // 等同  $form->display('name', __('商品名'));
            $form->switch('status','状态')->options(['0' => '关闭', '1'=> '开启'])->default('0');
            $form->listbox('listtype','类别')->options([1 => 'foo', 2 => 'bar', 3 => 'Option name']);
        });
    }

    protected function show($id, Content $content)
    {
        $content->header($this->header);
        $content->description('详情');
        $content->body(Admin::show(Shop::findOrFail($id), function (Show $show) {
            $show->panel()->tools(function ($tools) {
                $tools->disableEdit();      //禁用编辑视图
                $tools->disableDelete();    //禁用删除视图
            });
            $show->id('ID');
            $show->name('商品名称');    //等同 $show->field('name', __('商品名称'));
            $options = [1 => 'foo', 2 => 'bar', 3 => 'Option name'];
            $show->listtype()->as(function ($items) use($options){
                foreach($items as  &$val){
                    $val = array_key_exists($val,$options) ? $options[$val] : '';
                }
                return $items;
            })->label();
        }));
        return $content;
    }
}